THIS ENGINE IS TO POWER A NEW ..HARLEY DAVIDSON ULTRA ELECTRA GLIDE WITH 6 SPEED BAKER TRANSMISSION.

ON PAPER , THE UNDERSQUARE COMBUSTION CHAMBERS AND 90 DEGREE CYLINDER ANGLE IS ACTUALLY A ..BETTER .. ENGINE FOR A TOURING MOTORCYCLE THAN THE ORIGINAL HARLEY ENGINE . THE BRIGGS DESIGN DEVELOPES HP& TORQUE AT A LOW RPM COMBINED WITH THE UNDER SQUARE COMBUSION CHAMBERS+LOW BOOST TURBOCHARGING CREATES A WIDE LEVEL POWERBAND ( LIKE A MACK/CUMMINGS ECT DIESEL) IMAGINE A HARLEY WITH NO VIBRATION, STONG EVEN POWER AT ALL RPM AND TWICE THE POWER.

QUESTION: HORSEPOWER& TORQUE OF UNLIMITED BRIGGS DRAG MOWERS & SUPER MODIFIED TRACK MOWERS.WE ARE LOOKING FOR HP/TORQUE FIGURES SO WE DONT UNDER ESTIMATE STRESS AND MISS A WEAKNESS IN THE ENGINE . THANK YOU PAUL END

My crew chief on the motorcycle race team was the head racing engineer at Buell and also has won 21 or 22 national titles as a crew chief. He knows EVERYONE lol and is getting phenominal deals for the Harley components for the build . The rolling chassis comes in around 1/2 of the sticker price ( roughly 10-12k) The last Mower racer I ran was with a different mechanic ( my currenent crew chief was starting new business and took 2 years off of racing ) The race mower engine used then was a B&S OHV single starting with a 420cc ? displacement and then stroked to roughly 600cc. Compression 14.5 worked heads valves ect ect ect . I ...THINK.. we here getting about 40hp, but our main concern was attaining a broad, flat power band and good midrange .As im sure you know , Horsepower isnt worth much if you cant get the tires to hook up off the corners. Question: Have the cases/block and the crank main bearings on the Briggs Vanguard engines held up well? any weak points in the engines that we should work on ? thank You Paul End